Improvement in windmills



1 l .LEANDER L EACH. LMMM Wim MIL:

Fig-2.

PATENT OFFICE.

LEANDER LEACH, OF WILMINGTON, ILLINOIS.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 117,434, dated July 25,1871.

To all whom t may concern:

Beit known that I, LEANDER LEACH, of Wilmington, in the county of Villand State of Illinois, have invented a new and valuable Improvement inWindmills 5 and I do hereby declare that the following is a full, clear,and exact description of the construction and operation of the same,reference being had to the annexed drawing making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure l ofthe drawing is a representation of a vertical section andside elevation of my invention. Fig. 2 is a front elevation of the same.

My invention'has relation to windmills; and consists in a novelconstruction and arrangement of devices intended to serve as valuableimprovements for utilizing wind as a motor for machinery. Saidimprovements are hereinafter particularly specified.

In the accompanying drawing illustrating this invention, A indicates ahorizontal wheel-shaft journaled to bearings B on the turn-table C, andholding` the wheel, of which l) D are the radial arms. E is a largeencompassing-ring, having hinged thereto numerous tapering wings E'attached in sections of several wings together to concentric-cu1ved rodsat the inner and outer ends, e, the outer rods holding hinges c', to oneof which in each section is coupled a curved bar, F, connected at itsinner end to a collar, F', on the Wheel-shaft outside the wheel. F" is arod, the inner end of which is connected to a lug, f, projecting fromthe inner face of the collar F',

while the outer end passes through a loop, y, at-

tached to one of the arms D. G is a diagonal rod coupling the rod F'ltoa sleeve, G', which slides along' the wheel-shaft. H represents a-bentbar with a loop which encircles the grooved'portion of the sleeve G'. Anarm, I, connects the bar H with an elbow-lever, I', pivoted to one sideof the turn-table C, and holding on its end a weight, J. llhis weighttends to keep the wings E back toward the face of the wheel, a positionin which a greater surface is exposed to the force ofthe wind. Thecentrifugal form of the wheel when at high speed counterbala'rces theweight and throws the wings out from the wheel, lessening thereby thearea of surface exposed to the force of the wind, and causing the wingsto act as self-governors in regulating the speed of the wheel. As thewings expand the collar or wheel F' is turned by the rods which connectit with the wings, and, through the medium of the rods G F", it drawsthe sleeve G' forward and raises the weight, which, of course, fallsagain when the wind abates. A cord or chain, K, is attached to theforward end of the weight-lever, which may be used to expand the wingswithout the action of the Wind. The turn-table C is pivoted on a hollowvertical shaft, C', attached to the frame C", and through this shaft thegearing-shaft, which conveys motion from the wheel, extends. L indicatesthe vane attached to the rear end of the turn-table, andthe same asthose ordinarily used on windmills.

What I claim as my invention, and desire to secure by Letters Patent, is

l. The hinges e', in combination with the wings E', rods F, ring E, rodse, collar F', sleeve G', lever I, and weight J, substantially asdescribed.

2. The combination and arrangement of the rods G F", sleeve G', collarF', rods F, wings E', and hinges c', substantially as set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

LEANDER LEACH.-

Witnesses:

RUFUs TYLER, ADDISON I. LYON.

